The negative sign in the Faraday's equation for electromagnetic induction is related to the direction of the induced emf
Indicate whether the statement is true or false
TRUE
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The electric field associated with a uniformly charged hollow metallic sphere is the greatest at:
a. the center of the sphere. b. the sphere's inner surface. c. infinity. d. the sphere's outer surface.
You observe an x-ray burster. Based on current understanding, you can also conclude that you are observing
A) a close binary system in which one member is a white dwarf. B) a close binary system in which one member is a neutron star. C) a close binary system in which one member is a black hole. D) a close binary system in which one member is a neutron star and the other is a black hole.
A fast duck is flying 
mi/h at the same altitude as a slow airplane flying with a velocity of 
mi/h. How fast and in what direction is the duck moving relative to the airplane?
What will be an ideal response?
Which of the following scenarios involves energy that we would typically calculate with Einstein's formula E = mc2?
A) A small amount of the hydrogen in a nuclear bomb becomes energy as fusion converts the hydrogen to helium. B) A burning piece of wood produces light and heat, therefore giving off radiative and thermal energy. C) A mass raised to a great height has a lot of gravitational potential energy. D) An object accelerated to a great speed has a lot of kinetic energy.